Siemens GSD161.9A, S55499-D232 Electromotoric rotary actuators without spring return for ball valves, 2 Nm, 30s Electric motor-driven rotary actuators for open-cl
Siemens GSD361.1A, S55499-D231 Rotary air damper actuators, AC 240 V, 2 Nm, 30 s Electric motor-driven rotary actuators for open-close, three-position and modulating control